A nice feature to add once the bugs are worked out would be customizable key shortcuts. I’d like to be able to easily switch between tools. There’s already a few key commands but not much.
Also I think you should be able to zoom/rotate while using any tool. Right now you must click the hand tool first. For this to work it would most likely help if there were a shortcut that resets zoom and rotation instead of double-clicking with the hand tool.